openssl_encrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords protecting legacy encrypted files compared to standard PBKDF2 implementations.
Metrics
Affected Vendors & Products
References
History
Mon, 17 Aug 2026 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | openssl_encrypt versions before 1.4.0 use a non-standard PBKDF2 key derivation construction with iterations=1 per call in an outer loop, creating a KDF whose security properties have not been formally analyzed. Attackers can exploit this weakened key derivation to more efficiently crack passwords protecting legacy encrypted files compared to standard PBKDF2 implementations. | |
| Title | openssl_encrypt before 1.4.0 Non-Standard PBKDF2 Key Derivation | |
| Weaknesses | CWE-327 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-17T12:48:36.797Z
Reserved: 2026-08-17T10:42:40.455Z
Link: CVE-2026-74888
No data.
Status : Received
Published: 2026-08-17T11:16:43.653
Modified: 2026-08-17T11:16:43.653
Link: CVE-2026-74888
No data.
OpenCVE Enrichment
No data.